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Finding the Fourth Proportional to 1,060.44, 1,590.66 and 627

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Solution

The fourth proportional to 1,060.44, 1,590.66 and 627 is: 940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.44 : 1,590.66 = 627 : x
  2. Step 2: Convert to fraction form
    1,060.44/1,590.66 = 627/x
  3. Step 3: Cross multiply
    1,060.44x = 1,590.66 × 627
  4. Step 4: Simplify right side
    1,060.44x = 997,343.82
  5. Step 5: Solve for x
    x = 997,343.82/1,060.44
  6. Step 6: Final answer
    x = 940.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.